10000000000 nhan 9
300+800+900=2000
tk cho tớ nhé các bạn
105 la chuan 100%
300 + 800 + 900
= 1100 + 900
= 2000
tk mik nha
thanks
= 2000
t mink mink t lai, the
a,11.(x-6)=4.x+11
11x-66=4x+11
11x-4x=11+66
7x=77
x=11
3x+2x=70+20
5x=90
x=90:5
x=18
=5880